Friday, March24, 2017 L-36.com


Marine Weather and Tides
Kittery Point, ME

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:35AMSunset 7:02PM Friday March 24, 2017 10:10 AM EDT (14:10 UTC) Moonrise 4:44AMMoonset 3:17PM Illumination 10% Phase: Waning Crescent; Moon at 27 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 346 Am Edt Fri Mar 24 2017
.small craft advisory in effect from 8 am edt this morning through this evening...
Today..S winds 10 to 20 kt...increasing to 15 to 25 kt this afternoon. Seas 2 to 3 ft...building to 3 to 5 ft this afternoon. Snow or rain likely this afternoon with vsby 1 to 3 nm.
Tonight..SW winds 15 to 25 kt...becoming W 5 to 15 kt after midnight. Seas 4 to 6 ft. Rain or snow likely in the evening. Vsby 1 to 3 nm.
Sat..N winds 5 to 10 kt. Seas 2 to 3 ft...subsiding to 1 to 2 ft in the afternoon. A chance of rain in the afternoon.
Sat night..NE winds 5 to 15 kt with gusts up to 20 kt. Seas 1 foot or less.
Sun..E winds 10 to 15 kt. Seas around 2 ft.
Sun night..SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain in the evening...then rain or snow likely after midnight with vsby 1 to 3 nm.
Mon..E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely.
Mon night..E winds 5 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely.
Tue..E winds around 10 kt with gusts up to 20 kt. Seas 5 to 6 ft. A chance of showers.
Tue night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 6 ft. A chance of showers.
ANZ100 346 Am Edt Fri Mar 24 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure moves east this morning with a warm front crossing the gulf of maine this evening. A cold front will drop down from the south early Saturday morning. High pressure will build into eastern maine Sunday and into nova scotia Sunday night. SEveral waves of low pressure will move along the remnant frontal boundary near southern new england and cape cod early next week.

7 Day Forecast for Marine Location Near Kittery Point CDP, ME
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location: 43.06, -70.7     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 241105
afdgyx
area forecast discussion
national weather service gray me
705 am edt Fri mar 24 2017

Synopsis
A warm front will cross the region today, and then shift
southward as a cold front Saturday. High pressure will build in
Saturday night and Sunday. A series of lows will track across
the region Sunday night through Wednesday and make for an
unsettled period with some bouts of rain or wintry
precipitation. High pressure builds in for the end of the week.

Near term /today/
7am update...

will update the forecast based on early morning temperatures.

Regional radar imagery shows widespread echoes which have been
moving through vermont and even into new hampshire and maine at
times. Have yet to see reports of any of this reaching the
ground as there remains a very dry layer of air below this. It
will moisten up later this morning, though.

Original discussion...

surface high pressure over the area early this morning will
shift east today, bringing a southerly flow to the region which
will help to push out the cold air. Westerly warm advection flow
will be ongoing aloft today, bringing increasing clouds and
eventually precipitation. Precipitation will become more focused
along and ahead of a warm front which will move southwest to
east across the area today. Atmospheric profiles indicate that
conditions will be cold enough for snow formation ahead of the
warm front, with surface temperatures playing the critical role
in whether snow or rain reaches the surface. It is likely that
temperatures initially warm this morning, but as precipitation
arrives and falls into the low level dry air, evaporational
cooling will bring surface temperatures down closer to freezing.

As a result, expect most of the area to see some snow today,
with a possible transition to rain this afternoon and evening as
the precipitation comes to an end. There is not a ton of
moisture available with this system as it is arriving from the
west (off the continent) and does not have a lot of organized
lift with it. But total liquid precipitation amounts of 0.1 to
0.25 inches is likely, which could translate to 1 to 3 inches of
snow. The ability of snow to accumulate will be impacted by
surface temperatures which are expected to be near or possibly
above freezing for a good part of the area. Thus if snow does
accumulate it may melt quickly afterward.

Short term /tonight and Saturday/
Any lingering precipitation should depart to the east early this
evening as the warm front pushes through. There may be some
lingering upslope precipitation in the mountains on the low
level westerly flow. Temperatures across most of the area stay
in the 30s tonight, in some cases above freezing. But by morning
a cold front will be dropping down from the north which will
bring colder temperatures and drop northern areas into the 20s.

As the front arrives in southern new england during the day
Saturday, a weak wave will be moving east along the front. This
will spread some precipitation into southern parts of new
hampshire. Precipitation type will again be dependent on
surface temperatures, and at this time looks likely to be mostly
rain. But there could be some areas of light snow especially on
the northern edge. Warmest temperatures on Saturday may well be
toward the midcoast of maine where there could be some Sun to
bring the temperature into the mid 40s.

Long term /Saturday night through Thursday/
Overall, 500mb pattern in the extended will lean toward weakly
amplified zonal flow, with multiple waves, but nothing becoming
very amplified. Should see enough of a trough get carved out of
the flow by mid-week as it moves to our east, then we will some
ridging at the end of the week.

Models tend to be in agreement that cold front will shift far
enough south Saturday to allow some ridging to build in through
Sunday. So, have backed off pops a little more in this
timeframe. But this airmass will be cool with lows Sunday
morning back into the teens to mid 20s, and highs on Sunday
mostly in the 35 to 40 range, so a few degrees below normal.

Sunday night will see WAA return as weakening trough shifts ne
thru the great lakes as it runs into ridging aloft. The trend
is for less QPF Sunday night, given the strong ridging, but if
anything falls, many spots will be cold enough for either light
snow or freezing rain. This system is slow moving, and light
precip will likely linger into Monday, although with a gradual
warming trend, so precip should go over to rain in all but far
northern zones, with highs mid 30s to low 40s. Secondary wave
moves through Tuesday, and will likely see another round of
light precip, which could once again show some wintry
characteristics Tuesday night before cold front swings through
early Wednesday. Digging trough to our N and E should keep us in
drier NW flow for the latter part of the week, with temps
closer to normal.

Aviation /07z Friday through Tuesday/
Short term...VFR conditions this morning become ifr to possibly
lifr in light snow late this morning into the afternoon. Snow
may transition to rain through the afternoon especially in
southern parts of the area. Could seeVFR conditions return to
parts of the area overnight tonight.

Long term... Should see mainlyVFR Saturday into at least Sunday
morning. Then expect deteriorating conditions late Sunday into
Sunday night in mixed precip. Expect ifr late Sunday night into
Monday, with maybe some improvement to MVFR at times Monday
night and Tuesday, but expecting an extended period flight
restrictions for mon- tue.

Marine
Short term... A southwesterly flow will develop this afternoon
behind a warm front. Winds could gust to 30kt at times, and a
small craft advisory has been issued. Winds just above the
surface will be fairly strong, but the low levels of the
atmosphere should remain at least somewhat stable on the warm
advection flow, so we should remain below gale force winds
today.

Long term... Scas possible due to wind on Monday, and then
potentially for seas Mon night into tue.

Gyx watches/warnings/advisories
Me... None.

Nh... None.

Marine... Small craft advisory from 8 am this morning to midnight edt
tonight for anz150>154.

Long term... Cempa


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 7 mi86 min SSW 2.9 32°F 1032 hPa13°F
IOSN3 - Isle of Shoals, NH 8 mi71 min SW 17 G 21 33°F 1031.1 hPa (-1.3)22°F
44030 - Buoy B0102 - Western Maine Shelf 17 mi67 min S 18 G 21 36°F 39°F2 ft1030.4 hPa
WELM1 - 8419317 - Wells, ME 19 mi41 min SSW 11 G 15 35°F 38°F1030.8 hPa
WEXM1 - Wells Reserve, ME 21 mi71 min S 8 34°F 18°F
44098 - Jeffrey's Ledge, NH (160) 34 mi35 min 41°F2 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 38 mi67 min S 16 G 19 36°F 38°F2 ft1030.2 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 44 mi81 min S 16 G 19 35°F 38°F2 ft1031 hPa (-1.8)17°F
CASM1 - 8418150 - Portland, ME 48 mi41 min 35°F 36°F1030.4 hPa
44013 - BOSTON 16 NM East of Boston, MA 49 mi81 min S 18 G 19 36°F 40°F2 ft1031.3 hPa (-0.8)

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH7 mi73 minS 610.00 miOvercast31°F13°F47%1031.3 hPa
Rochester - Skyhaven Airport, NH19 mi20 minS 510.00 miOvercast30°F9°F41%1029.6 hPa
Sanford, Sanford Regional Airport, ME23 mi15 minSSW 510.00 miOvercast30°F14°F51%1031.1 hPa

Wind History from PSM (wind in knots)
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W9NW8NW6W4W7W5CalmE3S3SE3SE4CalmCalmCalmS6
1 day agoNW20
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NW11W8NW8W6NW7W7NW8NW14
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2 days agoCalmCalmCalmS6SE4SE6SE7SE7SE9SE5E3CalmCalmW5W3SW4SW4SW6W5SW6W9W10
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G26

Tide / Current Tables for Gerrish Island, Portsmouth Harbor, New Hampshire
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Gerrish Island
Click for Map
Fri -- 02:36 AM EDT     1.34 feet Low Tide
Fri -- 04:43 AM EDT     Moonrise
Fri -- 06:38 AM EDT     Sunrise
Fri -- 08:52 AM EDT     8.54 feet High Tide
Fri -- 03:12 PM EDT     0.64 feet Low Tide
Fri -- 03:16 PM EDT     Moonset
Fri -- 07:00 PM EDT     Sunset
Fri -- 09:28 PM EDT     8.15 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.92.41.51.42.13.65.47.18.28.586.74.72.71.30.70.923.85.77.38.187.1

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Fri -- 01:00 AM EDT     -1.49 knots Max Ebb
Fri -- 04:43 AM EDT     Moonrise
Fri -- 04:58 AM EDT     0.00 knots Slack
Fri -- 06:38 AM EDT     Sunrise
Fri -- 06:48 AM EDT     1.00 knots Max Flood
Fri -- 10:41 AM EDT     -0.00 knots Slack
Fri -- 01:28 PM EDT     -1.76 knots Max Ebb
Fri -- 03:16 PM EDT     Moonset
Fri -- 05:32 PM EDT     0.00 knots Slack
Fri -- 07:00 PM EDT     Sunset
Fri -- 07:20 PM EDT     1.01 knots Max Flood
Fri -- 11:16 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.2-1.5-1.3-1.1-0.700.810.70.50.3-0.2-1.1-1.7-1.7-1.5-1.1-0.50.410.90.70.50.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Gray/Portland, ME (10,2,3,4)
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Ground Weather Radar Station Portland, ME
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.